参数资料
型号: MAX5951ETJ+T
厂商: Maxim Integrated Products
文件页数: 7/25页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 32-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1MHz
占空比: 88%
电源电压: 4.5 V ~ 16 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 32-WFQFN 裸露焊盘
包装: 带卷 (TR)
12V/5V Input Buck PWM Controller
Typical Operating Characteristics (continued)
( Typical Operating Circuits . V IN = 12V or V IN = V REG = 5V, V DREG = V REG , V PGND = 0V, V SYNCIN = 0V, R RT = 49.9k ? , R ILIM = 48.7k ? ,
C REG = 2.2μF, T A = +25°C.)
2.00
1.75
1.50
DL, DH DRIVER ON-RESISTANCE
vs. TEMPERATURE
V FB = 0.9V
3.25
3.00
QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
6.75
6.50
SWITCHING SUPPLY CURRENT
vs. TEMPERATURE
1.25
RESISTANCE SOURCING
2.75
V PWM_IN = 16V
6.25
V PWM_IN = 16V
1.00
0.75
RESISTANCE SINKING
2.50
V PWM_IN = 12V
6.00
V PWM_IN = 12V
0.50
0.25
2.25
5.75
0
2.00
5.50
-40
-15
10
35
60
85
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE ( ° C)
PGOOD SEQUENCING (FIGURE 1)
MAX5951 toc15a
DCENI
5V/div
OUT1
1V/div
OUT2
1V/div
OUT3
1V/div
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
STARTUP SEQUENCING (FIGURE 1)
MAX5951 toc15b
DCENI_ = STARTUP
5V/div
OUT1
1V/div
OUT2
1V/div
OUT3
1V/div
PGI = PGOOD3
5V/div
PGOOD3
5V/div
PWREN SWITCHING
FROM HIGH TO LOW
1ms/div
PWREN SWITCHING
FROM HIGH TO LOW
2ms/div
TRACKING (FIGURE 1)
MAX5951 toc15c
OVERLOAD RESPONSE
MAX5951 toc16a
DCENI_ = STARTUP
5V/div
OUT1
1V/div
OUT2
1V/div
OUT3
0A
0A
OUT1
1V/div
I OUT1
2A/div
1V/div
0V
LX
10V/div
PGOOD_
5V/div
0V
DL
10V/div
STARTUP
400 μ s/div
PWREN SWITCHING
FROM HIGH TO LOW
0V
4 μ s/div
5V/div
_______________________________________________________________________________________
7
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